CN203318191U - Vertical hanging device of rigid suspended contact net used in subway tunnel - Google Patents
Vertical hanging device of rigid suspended contact net used in subway tunnel Download PDFInfo
- Publication number
- CN203318191U CN203318191U CN2013204153098U CN201320415309U CN203318191U CN 203318191 U CN203318191 U CN 203318191U CN 2013204153098 U CN2013204153098 U CN 2013204153098U CN 201320415309 U CN201320415309 U CN 201320415309U CN 203318191 U CN203318191 U CN 203318191U
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- Prior art keywords
- head bolt
- type head
- opening
- subway tunnel
- slideway
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of accessories of a rigid suspended contact net used in a subway tunnel, and discloses a vertical hanging device of the rigid suspended contact net used in the subway tunnel. The vertical hanging device is mainly characterized by comprising a sliding path with an opening at the lower end, a T-type head bolt and a locking nut, wherein the section of the opening of the sliding path is of a dovetail shape with two thin ends and a thick middle portion, and the head of the T-type head bolt is of a dovetail shape matched with the shape of an opening of the sliding path. When the T-type head bolt is impacted and tensioned again, even if the locking nut is loosened, reverse rotation of the T-type head bolt can modify the locking nut and enables the locking nut to return to an original installation position under the action of loading gravity, and therefore the aim of preventing the reverse rotation of the T-type head bolt is achieved. The situation that the T-type head bolt goes out of the sliding path due to the reverse rotation of the T-type head bolt is prevented. Besides, the thickened opening of the sliding path improves bearing force of a suspension structure, and accordingly the bearing structure is stable and reliable.
Description
Technical field
The utility model belongs to subway tunnel rigid suspension catenary accessory technical field, relates to specifically the vertical suspension apparatus of using rigid suspension catenary in subway tunnel.
Background technology
In subway tunnel, rigid suspension catenary hangs on the tunnel roof by vertical suspension apparatus, this device comprises the slideway anchor fitting, lower end forms with slideway and the T connector bolt of slideway opening, at first the head of T connector bolt is inserted in slideway by the slideway opening, along bolt cap arc-shaped edges swivel bolt to bolt cap square edge, be stuck on chute wall again, now the bolt T connector is vertical with the slideway fluting, the T connector bolt is hung in slideway, pin the T connector bolt with the pad nut, then will need retaining element to be anchored on the T connector bolt, thereby reach the connection effect.This vertical suspension apparatus is due to reasons in structure exists following defect: under parallel bolt Directional discontinuity impact force action, the jam nut on the T connector bolt is loosening, and the contrary installation direction rotation of T-shaped bolt until deviate from slideway, the contingency of structural failure occurs.
The utility model content
The technical matters that the utility model solves just is to provide the vertical suspension apparatus of using rigid suspension catenary in the subway tunnel that a kind of bearing capacity is large, reliable and stable, the T connector bolt is difficult for deviating from.
For solving the problems of the technologies described above, the technical scheme the utility model proposes is: comprise slideway, the T connector bolt and lock nut of lower end with opening, the dovetail shaped that the cross section of described slideway opening part is the thin thick middle in two ends, the head of described T connector bolt is the dovetail shaped with the form fit of slideway opening part.
Its additional technical feature is:
Be provided with pad between jam nut and slideway.
Use the vertical suspension apparatus of rigid suspension catenary in the subway tunnel that the utility model provides, compared with the existing technology have the following advantages: one, owing to comprising the slideway of lower end with opening, the T connector bolt and lock nut, the dovetail shaped that the cross section of described slideway opening part is the thin thick middle in two ends, the head of described T connector bolt is the dovetail shaped with the form fit of slideway opening part, even being subject to impacting jam nut in the process of again straining at the T connector bolt becomes flexible, the retrograde rotation of T connector bolt still can again be revised the former installation site of meeting under the load Action of Gravity Field, thereby reached the purpose that suppresses the bolt retrograde rotation, prevented from deviating from slideway because the retrograde rotation of T connector bolt causes the T connector spiral, and the slideway opening of thickening has also improved the bearing capacity of overhung construction, make carrying structure become more reliable and more stable, its two, owing between jam nut and slideway, being provided with pad, jam nut and slideway are fixing more firm.
The accompanying drawing explanation
Structural representation when Fig. 1 is T connector bolt insertion slideway;
The A that Fig. 2 is Fig. 1 is to view;
Fig. 3 is the postrotational structural representation of T connector bolt;
The B that Fig. 4 is Fig. 3 is to view;
Fig. 5 is the structural representation after the T connector bolt is fixed;
The C that Fig. 6 is Fig. 5 is to view.
The specific embodiment
Structure with the vertical suspension apparatus of rigid suspension catenary in subway tunnel the utility model proposed below in conjunction with accompanying drawing is described further.
Shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, be with the structural representation of the vertical suspension apparatus of rigid suspension catenary in subway tunnel as shown in Figure 1, Figure 2.Its structure comprises the slideway 2 of lower end with opening 1, T connector bolt 3 and jam nut 4, the dovetail shaped that the cross section at slideway opening 1 place is the thin thick middle in two ends, the head 31 of T connector bolt 3 is the dovetail shaped with the form fit at slideway opening 1 place, even being subject to impacting jam nut in the process of again straining at T connector bolt 3 becomes flexible, the retrograde rotation of T connector bolt 3 still can again be revised the former installation site of meeting under the load Action of Gravity Field, thereby reached the purpose that suppresses 3 retrograde rotations of T connector bolt, prevented from deviating from slideway because 3 retrograde rotations of T connector bolt cause T connector spiral 3, and the slideway opening 1 of thickening has also improved the bearing capacity of overhung construction, make carrying structure become more reliable and more stable.
Be provided with pad 5 between jam nut 4 and slideway 2, jam nut 4 is fixing more firm with slideway 2.
Protection domain of the present utility model not only is confined to above-described embodiment, as long as structure is identical with the vertical suspension apparatus structure with rigid suspension catenary in the utility model subway tunnel, just drops on the scope of the utility model protection.
Claims (2)
1. use the vertical suspension apparatus of rigid suspension catenary in subway tunnel, comprise slideway, the T connector bolt and lock nut of lower end with opening, it is characterized in that: the dovetail shaped that the cross section of described slideway opening part is the thin thick middle in two ends, the head of described T connector bolt is the dovetail shaped with the form fit of slideway opening part.
2. use the vertical suspension apparatus of rigid suspension catenary in subway tunnel according to claim 1, it is characterized in that: between jam nut and slideway, be provided with pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204153098U CN203318191U (en) | 2013-07-12 | 2013-07-12 | Vertical hanging device of rigid suspended contact net used in subway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204153098U CN203318191U (en) | 2013-07-12 | 2013-07-12 | Vertical hanging device of rigid suspended contact net used in subway tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203318191U true CN203318191U (en) | 2013-12-04 |
Family
ID=49657572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204153098U Expired - Fee Related CN203318191U (en) | 2013-07-12 | 2013-07-12 | Vertical hanging device of rigid suspended contact net used in subway tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203318191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402128A (en) * | 2016-10-13 | 2017-02-15 | 广东坚朗五金制品股份有限公司 | T-shaped bolt |
| CN109435781A (en) * | 2018-11-02 | 2019-03-08 | 中铁第勘察设计院集团有限公司 | The contact net non-maintaining serrated slot entirety bracket girder device of SC |
-
2013
- 2013-07-12 CN CN2013204153098U patent/CN203318191U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402128A (en) * | 2016-10-13 | 2017-02-15 | 广东坚朗五金制品股份有限公司 | T-shaped bolt |
| CN109435781A (en) * | 2018-11-02 | 2019-03-08 | 中铁第勘察设计院集团有限公司 | The contact net non-maintaining serrated slot entirety bracket girder device of SC |
| CN109435781B (en) * | 2018-11-02 | 2023-09-15 | 中铁第一勘察设计院集团有限公司 | SC maintenance-free sawtooth groove integral cantilever truss device for contact net |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20190712 |